Lock.



ZPATENTED FEB.12,190T

O.KATZBNBERGER.

LOOK. APPLICATION FILED JUNE 20.1906.

2 SHEETS-SHEET 1.

WITNESSES A TTORNEYS 'n-as Nokms PETERS cm, wAsHINGTON, n:

'PATENTED FEB. 12, 1907.

0. KATZENBERGBR.

LOCK.

IAPPLIGATION FILED JUNE 20.1906.

' ATTORNEYS UNITED s'rnpns Specification of Letters Patent.

PATENT" orrron.

OF SAN ANTONIO, TEXAS.

Patented Feb. 12, 1907.

Application filed June 20,1906- Serial N0. 322,569-

To CLZZ whom, it may concern.-

Be it known that I, OSCAR KATZENBER- GER, a citizen of the United States, and a resident of San Antonio, in the county of Bexar and State of Texas, have invented a new and Improved Lock, of which the. following is a full, clear, and exact description.

This invention relates to improvements in doorlocks, the object being to provide a lock of comparatively simple construction so arranged as to be opened by a key from the outer side of the door or by the manipulation of a combination on which the lock may be set, and, further, so constructed that the lock may be opened from the inside without employing a key or operating the combination.

I will describe a look embodying my invention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all. the figures.

- Figure 1 is an inner face view of a portion of a door with a lock embodying my invention. Fig. 2 is an outer face view. Fig. 3 is a section on the line 3 3 of Figs. 2 and 4. Fig. 4 is a section on the line 4 4 of Fig. 3. Fig. 5 is a similar section, but showing the parts in difl'erent position. Fig. 6 is a section on the line 6 6 of Fig. 4. Fig. 7 is a section on the line 7 7 of Fig. 4. Fig. 8 is a detail showing a combination click or finder employed. Figs. 9, 10, and 11 indicate the combination-tumblers employed. Fig. 12 shows a portion of the lock device indicated in Fig. 8, but made on a larger scale to clearly define the construction; and Fig. 13 is an end view' of a key that may be employed.

Referring to the drawings, designates the lock-casing, designed to be mortised into a door in the usual manner, and it is provided with a face-plate 11, having openings for the latch-bolt and the locking-bolt. The latchbolt 12 has at the inner side of the casing a shank portion 13, provided with a slot 14, which receives a guide-pin 15, attached to a wall of the casing. The latch is held yieldingly outward by means of a spring 16, engaging at one end with a-lug 17 on said shank and at the other end with the upper wall of the lock-casing, a portion of the spring being coiled around a pin 18, on which I a shifting plate or lever 19 is mounted to swing. This shifting plate or lever is provided with an outwardly-opening slot 20 for receiving a pin 21 on the shank of the latch, and this plate or lever 19 has an extension 22, designed to be engaged for rocking the plate or lever by means of a finger 23, carried by the block 24, the said block being provided with an angular walled opening to receive the square spindle 25, to which the inner and outer knobs 26 27 are attached in the usual manner. The finger 23 is provided with a pin 28, designed to engage with a spring 29, so as to turn the block to normal position after the operation of the finger on the extension 22. The shank of the latch has a downward extension 30, provided at its inner edge with a notch 31, the purpose of which will be hereinafter described. 1

The locking-bolt 32 has within the lock casing a shank portion 33, provided with an extension 34, a slot 35 being formed longitudinally in said extension 34, and this slot receives a pin 36, extended from the wall of the lock-casing. The locking-bolt is held yieldingly in its inner position by means of the curved end 37 of a spring 38 engaging in a notch 39, formed in said bolt. Mounted to swing on the pin 36 is a locking-lever having a downwardly-extended portion 40 and a horizontally disposed head portion 41, through which said pin 36 passes. On its upper side at the forward end the head 41 has a shoulder 42; and at its lower edge is a shoulder 43, the said shoulders 42 and 43 being faced in reverse directions-that is, one with relation to the other.

Mounted to swing on the shank portion 33 of the locking-bolt and between the same and the'head 41 of the locking-lever is a locking-arm 44. The said locking-arm is prevented from moving too far downward by means of a flange 45 at the lower edge of the shank 33.

The downwardly-extended portion 40 of the locking-lever is provided with lugs 46 47, one of which is designed to be engaged for moving the lever when the key is used from the outer side of the door or by turning the knob at the inner side of the door, while the lug 47 is designed to be engaged to operate the lever by the combination-tumblers, to be hereinafter described.

I will now describe the means for operating the lever 40 by a key from the outer side of the door or by turning the knob at the inner side of the door. This means comprises a segmental rack-plate 48, extended from a block 49, having an angular-walled opening to receive the correspondinglyshaped spindle 50, attached to a knob 51 at the inner side of the door. Extended from the block 49 at substantially right angles to the rack portion 48 is a finger 52, designed for engagement with the lug 46. The rack is designed to be engaged by the longitudinal flutings 53, formed on a key 54, when the said key is inserted through the opening 55, and the said key, as clearly indicated in the drawings, is tubular for a portion of its length to receive the fixed pin 56.

I will now describe the combination mechanism for operating the lock.

Extended inward from the inner wall of the lock-casing is a tubular lug 59, and movable within the lug is a sleeve 60, and extending through this sleeve is a spindle 61, having a linger-piece or knob 62 at its inner end and afinger-piece or knob 63 at its outer end. The spindle is provided with a plurality of longitudinal channels 64, in any one of which a rib 65 on the inner side of the sleeve 60 may engage for setting or rearranging the combination. Rigidly connected to the sleeve 60 is a combination tumbler-disk 66, the edge of which is flattened or made straight, as indicated at 67. Next to the combination tumbler-disk 66 and mounted to rotate on the tubular stud 59 is a combination tumblerdisk 68, having a notch 69 in its edge, and also mounted to rotate on said tubular stud is another tumbler-disk 70,

provided in its edge with a notch 71. The tumbler-disk 68 is provided with a segmental slot 72, and the disk 70 is also provided with a segmental slot 73, which is considerably shorter than the slot 72. A pin 74, attached to the disk 66, passes through said slots 72 and 73.

As a means for indicating the number of times that the spindle 61 is to be turned for opening the combination I employ a clicking or finding device consisting of a wheel 75, at tached to the spindle 61 and having a plurality of notches 76 extending partly around its periphery and terminating at the ends of a smooth peripheral surface 77.

In manipulating the spindle for opening the combination a roller 78 on a spring-arm 79 will click into successive notches until the proper number of turns shall have been made in either direction. The spring-arm 79 is rigidly attached to the lug 80 at the inner side of a trim-plate 81.

As a means for holding the locking-bolt 32 so as to prevent its movement to locking position I provide the bolt at itsunder side with a perforation 82, designed to receive a pin 83, carried by a plate 84, which has a lug extended outward to a slot in the faceplate 11, the head 86 of said stud being countersunk in the face-plate, and the plate 84 is prevented from sliding accidentally by means of a spring 87, carried by the sliding plate and adapted to engage with a side wall of the lock-easing.

Extended from the block 24 is a lug 88, designed to engage with either one of the shoulders 89 or 90, formed on the shank portion of the locking-bolt for moving said bolt when the spindle 25 is turned. The rack-plate 48 is returned to its normal position when released by means of a spring 91 engaging therewith, and on the lower end of the operating member 40 is a spring 92, designed to engage cushion-like against the front plate 11 and cause said locking-lever to return to its normal position. On the arm 44 is an outwardly-extended lug 93, the purpose of which will appear in the description.

The operation is as follows: To open the look from the outside by manipulating the combination, turn the combination-knob 63 to the right until the smooth space 67 on the tumbler-disk 66 arrives in position. Then turn to the right seven notchesthat is, the notches 76. Then from the seventh notch count six notches to the left. Then turn two notches to the right, and the combination will be opened-that is, the lug 47 will drop into the notches 69 and 71 and against the straight surface 67, permitting the end of the member 41 to drop below the lug 93. When so placed, the bolt may be moved inward by turning the outer knob. To move the bolt to locking position through the agency of the combination, turn the door-knob so as to bring the lock-bolt out. Then give the combination-knob a turn in either direction, and the door will be locked, because the lockinglever will swing to bring the end of its head portion in line with the inner side of the lug 93, as indicated in Fig. 4. The position of the parts for unlocking as above described is indicated in Fig. 5. To open a look from the outside with a key, the key is to be inserted through the keyhole with the flat surface of the head upward. Then turn the key a complete revolution to the left, and before withdrawing the key turn the outer doorknob to the left until it stops, and the locking-bolt will thus be moved inward, it being understood that the operation of the key will swing the head of the locking-leverthat is, its free end-sufficiently upward to clear the lug carried by the bolt. After this, of course, the key may be removed, and the lockingbolt may be moved to locking position by merely turning the outer knob to the right. To unlock the door from the inside, no key or combination is needed. For unlocking from the inside the knob 51 is to be turned to the left until it stops by the rack-plate 48 contacting with a fixed pin in the casing. When unlocking the bolt through the agency of the key or by turning the knob 51, the end of the member 41 will be thrown above the plane of the lug 93, thus permitting the bolt to be drawn inward upon turning the doorknob, and its inward movement will be stooped by the said lug 93 engaging with the shoulder 48. When the lock-bolt is innermost, the lug 93 will engage against the shoulder 42, thus preventing any outward movement of the bolt until such movement is desired. To lock the bolt in such way that neither the combination nor key will open the same from the outside, the procedure is as follows: When the bolt is out, open the combination by turning to the numbers 7 6 2, withdraw the bolt into the casing flush with the front plate, give the combinationknob a turn, pass to the inside of the door, and close the same. Then turn the knob 51 to the left until it stops, and then the door cannot be opened from the outside; but to unlock it the knob 51 is to be turned to the right.

Attention is called to the simple construction of the key part of the lock. It will'be seen there is only one piece, and it is a new way of operating a key-lock. It is absolutely secure. No skeleton key will open the lock, and obviously no two keys will be exactly alike. The key-lock may be constructed independent of the combination-lock.

When the locking-bolt is in its outer position, a knob cannot be turned sufliciently to operate the latch bolt, because the lug 88 will engage against the shoulder 90. When, however, the locking-bolt is wholly within the casing, the latch may be operated by turning a knob, as during this time the lug 88 will pass the shoulder-90, permitting the finger 23 to engage with the part 22 of the plate 19.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A lock comprising a casing, a bolt slidable therein and having a slot at its inner end, a pin extended from the casing into said slot, a lug carried by the bolt, a locking-lever having a horizontally-disposed head portion arranged to swing on said pin, the opposite end of the head portion being adapted to swing into and out of engagement with said lug, a rack-plate, a part extended from said rack-plate for engaging with the lockinglever, to swing it in one direction, and a key for engaging the said rack-plate.

2. A look comprising a casing, a lockingbolt slidable in the casing, an arm mounted to swing on the bolt, and having a .lug at its free end, the inner end of said bolt being slotted, a pin extended from the casing into said slot,'a locking-lever having a vertical portion and a horizontal head portion, the said head portion being mounted to swing on said pin, the free end of said head being movable into and out of engagement with said lug, a lug on the vertical portion of the lever, a rack-plate, a finger extended from said plate to engage with said last-named lug, and a longitudinally-fluted key for engaging the said rack-plate.

3. A lock comprising a casing, a lockingbolt slidable therein, means for causing the slidable movements of the bolt, a lug carried by the bolt, an arm on which said lug is arranged, the said arm being pivoted to the bolt, a lockinglever comprising a vertical portion and a horizontal head portion, the said lever being mounted to swing, a lug extended from the vertical portion of the lever, a rotary block, a spindle for turning the block, a finger extended from the block for engaging with said lug on the lever, a rack-plate extended from the block, and a key for engaging with the rack of said plate.

4. A lock comprising a casing, a locking bolt slidablein the casing, an arm mounted to swing on the bolt, a lug on the free end of said arm, a knob-actuated means for moving the bolt, a locking-lever having a vertical portion and a horizontal head portion, the said head portion having pivotal connection with the casing, the free end of said head portion being adapted for movement into and out of engagement with the lug on the arm, and a combination mechanism for permitting said head portion to drop below the plane of said lug on the arm, and also operating to move said head portion into engagement with said lug.

5. In a door-lock, a casing, a locking-bolt slidable therein, a lug carried by said bolt, a swinging locking-lever having a vertical portion and a horizontal head portion, the free end of said head portion being adapted for movement into and out of engagement with said lug, a lug at the lower end of the vertical portion of said lever, a plurality of combination-disks, one of said disks having a straight peripheral surface at one side, the other disks being notched at the periphery, the said other disks being provided with segmental slots, the slot of one disk having a greater length than the slot of the other disk, a pin extended from the first-named disk into said slots, a spindle for manipulating the disks, and a click device for indicating the position of the disks.

6. In a lock, a casing, a locking-bolt slidable in the casing, a swinging arm carrying a lug, a swinging locking-lever having a vertical portion and a horizontal head portion, the said head portion having a shoulder at the top near its free end, and a shoulder at the lower side near its free end, the said upper shoulder being adapted for engagement with said lug to hold-the bolt in said unlocking position, and the said lower shoulder being arranged for engagement with the lug to limit the inward movement of the bolt, means for causing swinging movements of said lever, and a knob-and-spindle-actuated means for moving the locking-bolt inward and outward 7. A look comprising a casing, a lockingbolt slidable therein, a securing device for holding said bolt in looking position, means for operating said device, opposite shoulders formed on the inner end of said bolt, a rotary block, a spindle extending through saidblock and having knobs at its ends, a lug on said block for engagement with either one of said shoulders, a finger extended from the block, a swinging plate having an extension adapted to be engaged by said finger, the said plate having a slot, a sliding latch-bolt, and a 15 plin extended from the latch-bolt into said s ot.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OSCAR KATZENBERGER.

Witnesses:

HENRY KOENIGHEIM, S. A. PEAcooK. 

